Exploration

LiDAR topography 

Eagle Mapping completed a 45 square kilometer LiDAR (light detection and ranging) topographic and air photography survey for the Company 9 April 2021. Equipment used was a Riegl VQ-780II LiDAR unit with a scan rate of 700 kHz and a PhaseOne iXM-150F camera mounted in a Cessna 206 aircraft. The flight speed was 110 knots, and the elevation was about 1700 m. Information was registered to UTM 13N ITRF08 horizontal datum and NAVD88 vertical datum in meters. Elevation models have a pixel size of 1 m and topographic contours were created for 1-, 5- and 10-meter intervals. The orthophoto has a resolution of 0.2 m. Overall, the data has a horizonal accuracy of +/-0.30 m and the vertical accuracy is estimated at +/-0.15 m. The orthophoto is accurate to +/- 2 pixels.

Geochemistry

 A total of 2429 B-horizon soil samples were collected from 97-line kilometers of survey grid. Sample spacing was either 25- 50- or 100- m (slope-corrected) and lines are 100 to 400 m apart. Collectively, about 1600 ha (about 40%) of the Property has been covered by the soil geochemical survey grids. Most overburden on the Property is residual soil from weathering of rock, although in steeper areas some colluvium and talus is present. Outcropping mineralization is trenched in a direction orthogonal to principal structures. Continuous rock chip-channel samples are cut from the bottom of the trench at 0.5- 1- 2- or 3- meter intervals, depending on the level of detail required to define a mineralized zone. Underground mine chip channel samples are cut across mineralized structures at 2- or 4- meter spacing between sample lines as ground conditions permit. Collectively, there are 6246 samples in 8758 meters of surface trenches and underground mine chip-channel samples. Locations for all of these workings have been determined precisely using LiDAR topography.